INTEGRATED PROPYLENE PRODUCTION
    72.
    发明申请
    INTEGRATED PROPYLENE PRODUCTION 有权
    综合丙烯生产

    公开(公告)号:US20120108864A1

    公开(公告)日:2012-05-03

    申请号:US13343076

    申请日:2012-01-04

    IPC分类号: C07C4/06

    摘要: A process for the production of propylene, the process including: fractionating a hydrocarbon stream comprising n-butenes, isobutylene, and paraffins into at least two fractions including a light C4 fraction comprising isobutylene and a heavy C4 fraction comprising n-butenes and paraffins; contacting at least a portion of the heavy C4 fraction with a metathesis catalyst to form a metathesis product comprising ethylene, propylene, C4+ olefins, and paraffins; fractionating the metathesis product into at least four fractions including an ethylene fraction, a propylene fraction, a C4 fraction comprising C4 olefins and paraffins, and a C5+ fraction; cracking the light C4 fraction and the C5+ fraction to produce a cracking product comprising ethylene, propylene, and heavier hydrocarbons; and fractionating the cracking product into at least two fractions including a light fraction comprising propylene and a fraction comprising C5 to C6 hydrocarbons.

    摘要翻译: 一种生产丙烯的方法,该方法包括:将包含正丁烯,异丁烯和链烷烃的烃流分馏成至少两个馏分,包括含有异丁烯的轻馏分C4馏分和包含正丁烯和链烷烃的重C4馏分; 使至少一部分重C4馏分与复分解催化剂接触以形成包含乙烯,丙烯,C 4 +烯烃和链烷烃的复分解产物; 将复分解产物分馏成至少四个馏分,包括乙烯馏分,丙烯馏分,包含C4烯烃和石蜡的C4馏分和C5 +馏分; 裂解光C4馏分和C5 +级分以产生包含乙烯,丙烯和较重烃的裂化产物; 并将裂化产物分馏成至少两个馏分,包括包含丙烯的轻馏分和包含C5至C6烃的馏分。

    Integrated propylene production
    73.
    发明授权
    Integrated propylene production 有权
    综合丙烯生产

    公开(公告)号:US08153851B2

    公开(公告)日:2012-04-10

    申请号:US12540109

    申请日:2009-08-12

    IPC分类号: C07C6/04 C07C4/02

    摘要: A process for the production of propylene, the process including: fractionating a hydrocarbon stream comprising n-butenes, isobutylene, and paraffins into at least two fractions including a light C4 fraction comprising isobutylene and a heavy C4 fraction comprising n-butenes and paraffins; contacting at least a portion of the heavy C4 fraction with a metathesis catalyst to form a metathesis product comprising ethylene, propylene, C4+ olefins, and paraffins; fractionating the metathesis product into at least four fractions including an ethylene fraction, a propylene fraction, a C4 fraction comprising C4 olefins and paraffins, and a C5+ fraction; cracking the light C4 fraction and the C5+ fraction to produce a cracking product comprising ethylene, propylene, and heavier hydrocarbons; and fractionating the cracking product into at least two fractions including a light fraction comprising propylene and a fraction comprising C5 to C6 hydrocarbons.

    摘要翻译: 一种生产丙烯的方法,该方法包括:将包含正丁烯,异丁烯和链烷烃的烃流分馏成至少两个馏分,包括含有异丁烯的轻馏分C4馏分和包含正丁烯和链烷烃的重C4馏分; 使至少一部分重C4馏分与复分解催化剂接触以形成包含乙烯,丙烯,C 4 +烯烃和链烷烃的复分解产物; 将复分解产物分馏成至少四个馏分,包括乙烯馏分,丙烯馏分,包含C4烯烃和石蜡的C4馏分和C5 +馏分; 裂解光C4馏分和C5 +级分以产生包含乙烯,丙烯和较重烃的裂化产物; 并将裂化产物分馏成至少两个馏分,包括包含丙烯的轻馏分和包含C5至C6烃的馏分。

    INTEGRATED PROPYLENE PRODUCTION
    74.
    发明申请
    INTEGRATED PROPYLENE PRODUCTION 有权
    综合丙烯生产

    公开(公告)号:US20100041930A1

    公开(公告)日:2010-02-18

    申请号:US12540109

    申请日:2009-08-12

    IPC分类号: C07C4/06

    摘要: A process for the production of propylene, the process including: fractionating a hydrocarbon stream comprising n-butenes, isobutylene, and paraffins into at least two fractions including a light C4 fraction comprising isobutylene and a heavy C4 fraction comprising n-butenes and paraffins; contacting at least a portion of the heavy C4 fraction with a metathesis catalyst to form a metathesis product comprising ethylene, propylene, C4+ olefins, and paraffins; fractionating the metathesis product into at least four fractions including an ethylene fraction, a propylene fraction, a C4 fraction comprising C4 olefins and paraffins, and a C5+ fraction; cracking the light C4 fraction and the C5+ fraction to produce a cracking product comprising ethylene, propylene, and heavier hydrocarbons; and fractionating the cracking product into at least two fractions including a light fraction comprising propylene and a fraction comprising C5 to C6 hydrocarbons.

    摘要翻译: 一种生产丙烯的方法,该方法包括:将包含正丁烯,异丁烯和链烷烃的烃流分馏成至少两个馏分,包括含有异丁烯的轻馏分C4馏分和包含正丁烯和链烷烃的重C4馏分; 使至少一部分重C4馏分与复分解催化剂接触以形成包含乙烯,丙烯,C 4 +烯烃和链烷烃的复分解产物; 将复分解产物分馏成至少四个馏分,包括乙烯馏分,丙烯馏分,包含C4烯烃和石蜡的C4馏分和C5 +馏分; 裂解光C4馏分和C5 +级分以产生包含乙烯,丙烯和较重烃的裂化产物; 并将裂化产物分馏成至少两个馏分,包括包含丙烯的轻馏分和包含C5至C6烃的馏分。

    Process for the utilization of refinery C4 streams
    80.
    发明申请
    Process for the utilization of refinery C4 streams 有权
    炼油C4流的利用过程

    公开(公告)号:US20050010071A1

    公开(公告)日:2005-01-13

    申请号:US10912253

    申请日:2004-08-05

    摘要: A process is disclosed for preparing a C4 stream for feeding to an alkylation process which reacts isobutane with butene to produce isooctane. The C4 stream is treated in a first distillation column reactor to remove dienes and mercaptans and separate out any C5's which might be present. The treated C4's are then fed to a second distillation column reactor that concurrently isomerizes 1-butene to 2-butene and splits the normal C4's from the iso C4's. The iso C4's are then fed to a third distillation column reactor where a portion of the isobutene is saturated to isobutane. The C4's from the isomerization/splitter are combined with the C4's from the hydrogenation unit and fed to a cold acid alkylation unit. The third distillation column may also oligomerize a portion of the isobutene to diisobutene in the upper end which is saturated in the bottom of the column to isooctane.

    摘要翻译: 公开了一种用于制备用于进料到异丁烷与丁烯反应产生异辛烷的烷基化方法的C4流的方法。 在第一蒸馏塔反应器中处理C4流以除去二烯和硫醇并分离出可能存在的任何C5。 然后将经处理的C4进料至同时将1-丁烯异构化为2-丁烯的第二蒸馏塔反应器,并从正C4中分离正常的C4。 然后将iso C4进料至第三蒸馏塔反应器,其中一部分异丁烯饱和至异丁烷。 来自异构化/分离器的C4与来自氢化单元的C4组合并进料至冷酸烷基化单元。 第三蒸馏塔还可以使一部分异丁烯在柱的底部饱和的上端中的二异丁烯低聚至异辛烷。